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PROTO Open End Wrench: Alloy Steel, Chrome, 7/8 in Head Size, 8 in Overall Lg - SAE, Double End, Open End Wrenches
PROTOSAE, Double End, Open End Wrenches

PROTO Open End Wrench: Alloy Steel, Chrome, 7/8 in Head Size, 8 in Overall Lg

The PROTO Open End Wrench is an SAE double-end open end wrench made from alloy steel with a chrome finish. It features a 7/8 in head size and an 8 in overall length, with manufacturer part number J3128.

SKU 3G-OTH-284872

Also listed as: J 3128 · J-3128

Brand
PROTO
Item
Open End Wrench: Alloy Steel, Chrome, 7/8 in Head Size, 8 in Overall Lg
Category
SAE, Double End, Open End Wrenches
Available to Order
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Technical specs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

PROTO
Manufacturer Part Number
J3128
Type
Chrome, Std
Overall Lg
8 in
Head Size
7/8 in

Technical Documents

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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PROTO Open End Wrench is an SAE double-end open end wrench made from alloy steel with a chrome finish. It features a 7/8 in head size and an 8 in overall length, with manufacturer part number J3128.

Frequently Asked Questions

What is the PROTO J3128 open end wrench used for?

The PROTO J3128 is a double-end open end wrench used for tightening or loosening hex fasteners in industrial maintenance, assembly, and repair. Its 7/8 in head size and 8 in overall length suit SAE applications across machining, material handling, and other plant departments.

What are the specifications of the PROTO J3128 wrench?

The PROTO J3128 is an SAE double-end open end wrench made from alloy steel with a chrome finish. It has a 7/8 in head size and an 8 in overall length. The manufacturer part number is J3128, and it is a standard type without a locking feature.

Where to buy the PROTO J3128 wrench worldwide?

3G Electric supplies the PROTO J3128 open end wrench worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this alloy steel, chrome-finished wrench to your facility. Contact us for availability and lead time.

How to maintain a PROTO chrome finish open end wrench?

To maintain the PROTO J3128 chrome finish, wipe the wrench clean after use with a dry cloth to remove grease and debris. Avoid exposure to corrosive chemicals. Store in a dry tool chest to prevent rust. The alloy steel construction resists wear under normal industrial use.

Used in

Common applications for PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting

PROTO Products

3G Electric supplies PROTO sae, double end, open end wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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